Automobile chassis lubrication



eb. 15 l1927. F J. BIJUR l AUTOMOBILE CHASSIS LUBRICATION Fileduareh 24.192s Nw mw wx z NM. .m mw W h. RN qu@ www Nm N .www mw m www QN ma mwmm. I H.ll%\ i WN Y K 4 w La.. NN

Patented Feb. 15, 1927.

UNITED STATES ^YORK, N. Y., ASSIGNOR TO AUTO RESEARCH CORPORATION,

A. CORPORATION F DELAWARE.

PATENT vOFFICE.

I AUTOMOBILE CHASSIS LUBRICATION.

Application lcd March 24, 1926. Serial No. 96,919.

My present invention is primarily concerned with automobile chassislubrication and has reference more particularly to the lubrication froma source on the vehicle excess oil accumulates thereat and is apt tosoilthe clothing of the passengers, to drip upon the floor of the garage andby reason of the Waste thus incurred, to necessitate y unduly frequentreplenishment of the oil supply. In the application of the invention totension shackles and 'analogous constructions, a limber conduit leadingto the oscillating upper bearin `from ,the fixed sup- V port structureis li ely to be vulnerable, While the elevation-of an adequate supply oflubricant to the upper bearing from the vlower ,bearing might in volveconsiderable overlubricationof the latter,with the disadvantages justpointedout were the oil fed .past the lower bearing; A

It is, accordingly, an object of the invention to adequately lubricatewith clean oil from a single source, both of the bearings of aconstruction such as a tension shackle, but Without incurring excessiveoverflow at either bearing. More specifically, it is among the objectsto raise from the vehicle structureto vthe upper or oscillating bearingof the shackle, vwithout incurring leak through any moving jointtherebetween, a

supply of lubricant adequate for the needs of said upper bearing,- andto accomplish this without complicating or rendering r more bulky theconstruction of shackles commonly used, or providing any exposed orloose or flapping conduit or swivel, or employing an inlet fittingdifferent from those for supplying lubricant to the other bearings onthe chassis.

In o'rder to introduce the lubricant from the fixed vehicle 'structureinto the bearing member which has. a pivoting movement.

with respectto Saidstructure, I provide a greatly overlubricate anybearing, because relatively open entry passage across the surface Wherethe .swiveling action occurs, through Which the lubricant will readilyflow, rather than to leak from the bearing. In a preferred arrangement,the lubricant is admitted into the rocking bearing atpthe loaded sidethereof, that is, at the side on Which the-bearing sustains the Weightof the vehicle body. .Inasmuch as 'it is not convenient in all types ofconstruction to admit ylubricant from the frame directly into the loadedside ofthe bushing, I may admit the lubricant at any part convenient,causing it to ass to the loaded side by way of a perip eral groove aboutthe press-fitted bushing. Preferably the bearingr has a flat-adjacentthe point of entry for liibricant, so that precise registry between oilholeswill 'be unnecessary. A j v The lubricant fis conveyed from theinlet in a lubricant-tight. path along the structure of the shackle tothe bearing surfaces there'- of. In a preferred application, the lubri-'cant flows through a passage'a formed ina rigid yoke structure made upof the two shackle bolts 'and one of the shackle links, so that no leakcan take place in the travel into and from the link inthe course fromone to the other of the bolts. The require- -ments ofy the lower bearingare met inwhole or in part by gravity return of oil fromfthe connectingpassage that leads -to the upper bearing.

Another feature of the invention is to reduce the effective volume of.thebore through which the lubricant is raised from the lower to theupper bearing, by substantiall fillf lng-the same with ai core, therebyre ucing the volume of lubricant to be replenished in -each operation,`preliminary to supplying the upper bearing. A

The invention herein claimed is an improvement on the inventiondisclosed in -my c opending applications Serial No. 604,464 filedDecember 2, 1922, and Serial No. 654:,-A 606, filed July 30, 1923,wherein the broader features herein claimed aredescribed.

In-the accompanying drawings in which i ments'of the tion,

Fig. 1 is a side view of one preferred form of tension shackleinstallation, taken on line 1-.1 of Fig. 2 and -is'shown one of variouspossible embodiseveral features of this invenv Fig.V 2 is a sectionalview taken along the line 2-2 of Fig. 1. Referring now shown the rearend or horn 10 of a motor vehicle channel frame which terminates in aneye` 11 into which is press-iitted a bushing 12. The bushing encirclesthe lower bolt 13, the protrudingr ends of which engage respectively thelinks 14 and 15 through the upper eyes of which extends the upper -bolt16 encircled by the bushingI 17 of the spring eye 18. The shackles ofthe type shown, are known as tension shackles because when installed,the welght` of the vehicle body is' suspended from thelower ends ofthelinksI and exerts tension thereon.

The link 14 of the shackle is provided with a longitudinal bore 19extending from the upper end thereof and breaking through the eye 20A atthe lower end thereof, a plug 21 sealing the upper or outer end of saidbore.

` The bolts'13 and'16 are press-fitted or othercorresponding eyes 20and" 22 inthe linkv upper and lower bolts have respectively a radialbore 25, 24 brought into registry with the longitudinal bore 19 of thelink in the assembly, as shown, preferably by providing the link withintegral lugs 2,6. constituting stops for corresponding flats 27 on theheads 28 of the bolts, The radial bores of the upper andv lower boltscommunicate respectively with axial bores 30, 29, each of which isplugged at -31 at its outer end. The axial bores 29, 30 are incommunication near their inner ends respectlvely with radial bores 32,

33, said bores extending toward each other in the assembledconstruction.

The two bolts 13, 16 and the link 14 being preassembled, into a lrigidunitary yoke in the 4manner described, the shackle is installed orapplied by extending the end of the lower bolt through the framebushing-12 and the end of the upper boltthrouglh the spring bushing 17, thenapplying complementary link 15 over the ,protruding ends of the bolts,tightening the nuts 34 an inserting the Cotter pins 35 to complete theassembly.

For admitting lubricant to the shackle, I

have illustratively shown the frame line 36 of a central chassislubricating system,

which may be of any of various types. I have shown the exterior of a Howcontrolling fitting 37 actuated from a central source of pressure, thespecific construction of' which fitting need not be shown ner described,as it is not in itself Ymaterial to the present invention. This ittmg isshown applied in ai al@ drawings, r havey Lerares leads'to a curvedlength of pipe 39 lodged i in the channel 40 of the fran'ie horn andde-j livering into the eye 11 of the frame v.by

telescoping its extremity into a correspond ing bore 41 and soldering inplace therein at 42, The bore is conveniently formed longtudinally ofth`e extremity of the frame, as shown, and extending substantiallydiametrally of the' eye 1l and plugged vat 43 at its outer end. By theconstruction disclosed, the length of pipe 39 is well protected Wit-hinthe channel construction so that it is not subject to 4injury bycollision or by the application of a tow rope. The lubricant deliveredthrough ,the .pipe 39 enters la peripheral groove 44 about the exterior'of the bushing 12,' said groove delivering through an vaperture 45 a'tthe loaded, in

this case the upper part thereof, to the radial' v bore 32 ofthe lowerbolt. The bolt, as shown, is formed with a short narrow flat r46 at bore32 in order tn tssure registry with the bushing hole 45, regardless ofvariations. Among the variations thus compensated for, are thoseincurred in the manufacture of the axles and springs, those due toinaccuracies in the pressing in of the bushings and those due toinaccuraces resultingA from diiferent characters of vehicle bodiesandfrom varying passenger loads. The flat 4G while long enough toaccommodate these variations should yet not be solong as to materiallyreduce the effect-ive carrying surface. The Hat also reduces the cuttingangle of the edge of ,the bolt hole'relative to the bushing and tends toprevent particles ofworn bearing materialfrom clogging thebore. Theupper bolt is preferably-forn'xed with Aa flat peripheral groove 47 fromwhich the lubricant is distributed in a manner that willappear-presently. Inasmuch as the lower bolt is deroidj'o'fthis groove,the bolts are differentiated in construction, and to avoid thepossibility of applying the spring eye bolt'through the frame eye,lxhave shown the lower bolt of larger diameter than the upper.

ln operation, lubricantv from the source of pressure, will be forcedpast the flow con- .trol fitting 37 through pipe 39 and bore 4l tobushing groove 44, rwhence it will pass through aperture 45 into bore32, thence by Way of longitudnal bore 29` radial bore 24, link bore 19,vradial bore 25 and longitudinal bore 30 through bore 33 to'the upperbushing.

' 'lhelubricant is fed` from the lmsl1ing12 to the lower bolt across theloaded side of the latter, so that the pressure from the source will beeffectively transmitted across thebearing surface. `While, in general,it ispreferred specifically to admit the lubricant to the rocking memberacross the loaded side thereof, it is suiicient, especially in relationsin which the bearing carries no submitted through the length of t-hesubstan -tially lubricant-tight U-shaped passage in the preassembledyoke made up of Y.the two blts 13 and 16 and the connecting link 14. Thelubricant need not' be elevated above the axis of the upper bolt, sinceit flows downward from bore through the depending radial-bore 33 whichleads to the loa-ded side of spring bushing 17. The lubricant spreadsalong the peripheral.M groove 47 about bolt 16 until it has reachedalrelatively unloaded `p art from which it will readily spreadlongitudinally, to effectively lubricate the upper" bearing. Some of'the lubricant from the bushing port 46 will spread along the lower boltto lubricate the latter. Excess lubricant stored in the passages abovebolt 13 will slowly descend after the pressure operationhas ceased, and.will further lubcate the` bearing surface ofthe lower A bolt 13.

In a preferred embodiment, the bore 19 is substantially filled,preferably with a core whichmay be a solid pin or rod 48, preferabl bentso as tobe friction-held in place therein. The rod neednotbe speciallyhandled in assembly as it remains in place in the link. Preferably,theends of the rod are cut t' oblique at49, as shown, to avoid thepossibility of sealing therewith, the passage to or from either of thebolts. By theuse of this core, it will be `seen that although thebore'19 is of relatively large diameter, conveniently Abored'with alarge andfsturdy drill, yet-the effective volume of the bore isrelatively minute. AWithout the use of the Core 48, the charge neededfor each lubrication,` is in excess' of the substantial volume of thelink bore, as the latter would have to be completely replenished beforevdelivery to the vupper bearing could occur.- By the use of lthe core48, as described, the admission of even a small charge would result inemission to the upper'bolt, especially, since the link bore normallyremains filled `by the capillary vaction due tothe small effectivepassage therein. 'This capillary relation also' prevents draining ofthe.lubricant held in the bore 19 through any excessively -worn and looselpart of. the bearing, so that the link bore would remain filled, evenunder .adverse conditions fof operation.

I claim:-. j 1. In apparatus of the character described, an upperbearing, a lower bearing including a fixed element forming a pivot mountfor the uppr bearing, an oil inlet stationary with respect to said fixedelement,

inlet will promptly reach the upper bea-ring.

2. In apparatusofthe character described, a. lower bearing having afixed and a rocking element, a link having a tight fit on said rockingelement, an upper bear,-

ing oscillating with said. link, an oil inlet stationary with respect tosaid fixed element, an oil duct leading to said upper bearing suppliedfrom said inlet by flow from said rocking bearingel'ement acrosssaidtight tit and nir-)ving as a unit with the link, said inlet having afree passageway into the rocking bearing member, said lower bearingimposing high resistance .to leak therefrom.

3. In a. motor vehiclefa fixedsupporting bearing member rigid with theVehicle structure, a complementary bearing member having a rockingmovement thereon, a` link rigid with said rocking bearing and extendingupward therefrom, a bearing member carried at the free'en'd of saidlink, means for lubricatingrsaid bearings, said means comprising Ialubricant inletlat the fixed bearing member, a passageway'transverselyacrss the bearing surface, leading from said inlet into-.said rockingbearing, said passageway affording a' relatively open course to escapefrom the bearing, vsaid link having oil therein by capillary attractionla longitudinal boreatheryein, a core `substan- I tially filling saidbore, the ends of said bore having a substantially lubricant-tightconnection with the bearing membersassociated therewith.

4.' Infafmotor vehicle, a pair of associated bearing` members, vasupportfor the upper of said members havlng an oscillating Inove-` mentabout `the lower of' said members as a pivot` said lower bearing meinlerincluding ya'fixed element, a lubricant inlet at said fixed element, abore therefrom across the 'bearinnr surface ofs'aid pivoted bearing.said bore a Ording a relatively open lowresistauce path of flow. intothe pi'voted member,

and a lubricanttight passageway along the oscillating structure leadingfrom said bore to the upper bearing member.

5. In a motor vehicle. a pairof assosiatedbearing members, a support forone of said members vhaving an oscillating movehientA about the other as'a pivot, said pivot bearing including a fixed element, a lubricantinlet at said fixed element, -a passageway therefrom across the loadedside of vsaid pivot bearing into lthe rocking elementthereof, and a ductleading therefrom through theA supportfinto the oscillating bearing. f

6. In a' motor vehicle, a'fixed supporting bearing member rigid withAthe vehicle structure, a complementary. bearing member having a rockingmovement'thereon, a link rigid with said rocking bearing, a bolt carriedat the free end of said link and a-bearing about said bolt, means forlubricating said bearings, said means comprisinga lubricant inlet at thefixed bearing member, a passageway extending across the loaded side ofsaid supporting bearing intothe structure of the rocking bearing member,said linkhaving an 'oil-tight lfit with respect to both saidrockingbearing and said bolt and having a bore conveying the lubricantfrom said rocking bearing to said bolt, and a passageway through saidbolt leading the lubricant to the bearing surface thereof.

7. In a tension shackle for a motor vehicle` a bearing member fixed onthe frame, a coacting bearing member having a rocking Inovement withrespect thereto, an arm extending upward from said rocking bearing andrigid therewith, af bolt carried by the upper end of said armand vfixedthereto, means vfor'vconveying lubricant from'said frame to said bolt,said means including a passageway longitudinally through said arm,communicating with a corresponding passageway from. said coactingbearing and we leading to a passageway in said bolt.

`8. A tension shackle comprising a fixedL ,bearing member onthe 'vehicleframe, ,a

bearing member rocking thereon, a link having a lubricant-tightconnection with said 'rocking bearing, a bolt carried at the free .endofsaid link, alixed lubricant inlet at the frame admitting lubricant tosaid rockv'ing bearing through a passageway extending transverselyacross the bearing'surface and affording arelatively free path ofresistance to oil flow less than the resistance tot-scape from thebearing, and a passageway communicating with said bearing sur-face andlea-ding upward to supply lubricant to the bearing of said bolt.

9. A tension shackle comprising a fixed bearing member carried on thevehicle fra-me, a complementary rocking bearingA thereon, an upwardlyextending link having' a lubricant-tight t on said rocking bearing,

a bolt having a lubricant-tight fit in the' upper end ofsaid link, a'lubricant inlet i fixed on the frame and-delivering through an openpassageway transversely into thel rocking-bearing', ,afCOI'elsubstantially filling a bore longitudinally of the link, the passa-gewayin the rocking bearing delivering across the fitted connection thereofinto said filled bore, said filled bore ,feeding into said' bolt acrossthejjtted connection thereoffthe' resistance Ytol owimposed bythepassagei Lerares way` from the inlet to the upper bolt beingsubstantially less .than that restraining leak vof lubricant from thefixed bearing.

10. 'A tension shackle comprising a frame eye having a bushing therein,a frame bolt pivoted in said bushing, an upwardly extending link havingan oil-tight t on ,the

end of said bolt, a springbolt having an oiltight fit in the upper endVof 'said link, a

lubricant passagei through said frame bolt 'longitudinally through said.link and into said spring bolt, said passageway extending across thetight fit of the bolts in the link, said passageway having an inlet inthe bearing surface of the rocking frame bolt, an

inlet member fixed 'in the frame eye and debolt, a' spring bolt havingan oil-tight fit in the upper end of said link, a lubricant passagewayextending through said frame bolt longitudinally through said link andinto said spring bolt, said passageway eX- tending across the tightfitfof the bolts inl the link, said passageway having aninlet inthebearing surface of the rocking frame bolt, an inlet member fixed in thevframe eye and delivering to saidvbolt inlet, the

bearing structurel intervening between the frame inletand the ends ofthe frame bolt affording a resistance to loss of lubricant greater thanthat imposed by the passage from the lower bolt to the upper bolt, and asolid core substantially filling the bore in the link and affording acapillary passage therethrough.

12`. A tension spring shackle .comprising a fixed support on the frame,a rocking bearmember on said support, a link rigid,V

ing

with said rockingbearing member andcxtending upward therefrom, a boltfixed lto the upper end of said link, alubricant inlet at saidframe,'said inlet delivering across the loadedside of said bearing onthe frame to pass the lubricant thereacross under .pressure info acorresponding passagewayin said lower rocking bearing member, and apassageway extending upward along said shackle structure and affordinga' substantially lubricant-tight path to the bearing `surface of theupper bolt.

13 In a tension shackle, means for conveying lubricant from the frame tothe spring bolt thereabove, `said means includ-V ing a passagewaythrough theI body of the' shackle structure, affording a substantiallyleak-tight course vfor the upward flow of therewith by flow acrosstheloaded part of the correspo y ing bearing surface.

14. A tensi n shackle comprising 1n combination, a supporting bearingincluding a fixed frame part and a shackle part having -a rocking mountthereon, the, outer of said' parts having a bushing press-fittedthereinto, a .pair of links rigid with said rocking member, a boltcarried by the upper-ends of said links means admitting lubricant intothe fixed rame member, a passageway through the bushing delivering atthe loaded part thereof into a corresponding passageway extendingthrough one of the links, and delivering through the upper of the boltsto supply the latterv with lubricant.

15. A tension shackle comprising an eye on the frame, a' bushingtherein, a bolt through said'bushing, a link on`said bolt, a

bolt through the upper end of saidA link, and a second link connectingthe outer ends of said bolts a bore through the bushing conveyinglubricantacross the loaded surface,

thereofA into the lower bolt, both of said bolts being secured to one ofsaid links to form a yoke therewith, and an oil-tight passage 1 throughsaid yoke leading y.lubricant from the lower to the'upper bolt. v

16. AA tension shackle comprisinga bushv I ing press-'tted in a frameeye, a shackle bolt assemblyv comprising a link having a pair offboltsextending therethrough and having an oil-tight connection therewith, the

lower of said bolts mounted in saidbushing, a spring eye pivoted uponthe upper of said bolts, a second link extending over the protrudingends of said bolts, means comprising an inlet fitting conveyinglubricant across the frame eye to pass from'. the

yloaded part ofthe bushing into a. radial bore nections of the boltswith said first link.

` 17. A tension shackle comprising a'shackle link, a lower bolt havingits head tightly vfitted in one of the link eyes, an upper bolt havinits head tightly -ttedin the other eyeo said link, a longitudinal borethrough said link communicating with corresponding bores in said bolts,axial bores in said bolts plugged at the outer ends thereof, the lowerof' said-boltshaving a radialinletfbore termnatingat the loaded sidethereof, a bushing encircling said' bolt, and an aperture through thebushin vregistering with said radial bore, where y lubricant admittedthrough said aperture will be elevated through the vpassageway to supplythe bearing o1 the upper bolt.

18. In a motor vehicle, a frame Lhaving an eye, a bushing therein, atension shackle 'including a vbolt in said bushing, means for conveyinglubricant from the frame into said bolt, said means comprising anaperture through the loaded side of said bushing, a radial bore in saidbolt substantially aligned with said aperture,"and a passageway leadingfrom said bolt to the upper bearing of said shackle.

19. The combination set forthin claim 18 in which the Apassagewaycomprises a longitudinal bore through one of the shackle links,substantially filled with a solid core.

20. In a motor vehicle, means for conveying lubricant from the frameinto a tension shackle structure thereon, said means comprising apipeterminating in a bore leading into the frame eye, said eye having abushing press-fitted thereinto provided with a peripheral outer grooveregistering` with said pipe end, said bushing having an aperture thereindelivering from said `groove through the part thereoffon which the loadof the body is sustained, a bolt in said bushing having a radial boresubstantially aligned with said bushing aperture, a flat on said bolt atthe outer end of said radial bore, and a lubricant conduit in saidshackle structure leading'from said radial bore to the upper bolt.

21'. In a motor vehicle, means for convey- 95 .ing lubricant from theframe' into a shackle 'press'fitted thereinto, provided with aperipheral outer groove registering with the extremity of said bore,said bushing having an aperture therein delivering through the part ofsaid 'bushing on which the `load of 105 the body -is sustained, wherebylubricant will liow without substantial leak into the bolt on theshackle.

22. A. tension shackle comprising an eve on the frame having a bushmgpress-fitted 110 thereinto,`a shackle yoke structure including a bolt ins aidbushing, a Vlink and a second bolt sustaining the spring eye, asecond link connecting the free ends ofsaidd bolts, said yoke structurecomprising a rigid entity havingk a U-shaped .oil duct therethroughterminating at the loaded A surface of the frame bushing, meansadmitting lubricant "to said duct, said means comprising an -inlet ythrough the eye, and a groove in the outer 129 surface of the bushingleading from said inlet through an aperture in the loaded side of saidbushing, said oil duct'having a dependilg outlet throu h the spring eyebolt.

23.- tension shaclr on-'the frame having a bushing press-fittedthereinto, a shackle yoke structure-including a bolt in said bushing, a`link and a second bolt sustaining. the springeye bushing, a second linkconnecting the free ends of said 1.30

le comprising an eyel.

i bolts, said yoke structurecomprising a rigid entity having a U-shapedoil duct therethrough terminating at the loaded sides of the twobushings, means admitting lubricant from the frame to said shackle yoke,said .meansy including a bore substantially diametrally through the eye,pluggedat its outer .c

. end and delivering. to a peripheral groove about the bushing, saidgroove delivering through an aperture in the bushing at the loaded sidethereof.

24. Ina motor vehicle, means forconveying lubricant. from a part on thevehicle structure to an associated bearing at higher level performing alimited oscillating movement about'said part, said means including apassageway leading upward to said upper bearing, said passageway beingfilled to substantially reduce 'the effective cross-section thereof, fora substantial part ofthe length thereof. y

' 25. ln a motor vehicle, means foriconveying lubricant froma part onthe vehicle structure to an associated bearing at higher level'performing a limited oscillating movement thereabout, said meansincluding a pasageway leading upward to said upperl bearing, and a coresubstantially filling 'a substantial part of the-length of saidpassageway. v p

26. ln a motor vehicle, means for conveying lubricant from a part on thevehicle structure to an associated bearing atl higher level performing'a limited oscillating movement about said part, said means including apassageway'leading upward to said upper lbearing, said passageway havinga solid core held therein to afford a passageway noi'- mally maintainedfilled with oil by capillary action.

27. A 'tension shackle comprising a link, a y pair of bolts press-fittedinto the eyes of said link, stop means to predetermine the angularposition of said bolts relative to said link, said bolts being ofsmaller'diameter beyond said link, whereby in assembly ofl said bolts tosaid link, the bearing surface.

of the bolts -Will remain in tact, 'a longitudinal bore through saidlink communicating with correspondingradial bores in said bolts, saidradialibores communicating with cluding a terminal .bore into the frameeye,

a peripheral groove in the frame bushing communicating with the end 0ftheb'ore,

said bushing having 'an aperture. theiain at j said groove andsubstantially aligned with the radial bore at the inner end of the axialbore of the lower bolt. Y

28. In a vehicle structure, a channel frame having a reversely bentpart, a fixed bearing thereat, a tension shackle having an upwardlyextending link pivotally mounted at said fixed bearing, oil passages-associated with said shackle supplied from said fixed bearing, and alubricant pipe lengthwise of the channel frame delivering'into saidfixed bearing for supplying lubricant to said` shackle, the terminalstructure ofA the'pipe protected in the channel of the frame.

29. Means for ,lubricating from a` remote source a tension shackle atthe end of a channel frame, said .means including a fiow controllingterminal fix'ed. at thev channel frame at a distance from the tension'shackle, a length-of pipe supplied from said fitting lodged in thechannel structure at the end of said frame and Adelivering into a borein the channel frameeye, a tension shackle havinga lower bolt mounted insaid eye and a passagewayassociated with said tension shackle to conveythe lubricant from said bore to the shackle bearings.

30. ln apparatus of the character described, a lower bearing` includinga'bolt and a fixed bearing member therefor includingv a bushingthereabout, a link connected to the rocking element, of said bearing, anoscillating bearing carried by said link,`a lubricant inlet at saidfixed element substantially midway between the-ends thereof, a borerigid with said link and delivering lubricant from said inlet tosaid'oscillating bearing, said lower bearing imposing high resistance toleak from the ends thereof.

31. ln apparatus of the 4character described, a pivoted support, abearing mounted on said sup ort at a level above the pivot andoscillating with the support, means for intermittently lubricating saidbearing, said meansvincluding a fixed inlet, a conduit having a commonswiveling axis with said support and leading to said bearing, saidswiveling surface a'ord'ing a greater resistance to leak v oflu'bricanttherefrom thanexists in the length of the passageway from said fixedinlet tosaid bearing, a substantialportion of the lengthof said conduitbeing ofedective bore so small as to maintain lubricant therein bycapillary action.

32. ln^ apparatus of' the character ldey scribed, a fixedlbearing-member, a structure having a bea-ring part pivoted 'withrespect to said fixed member and extending upward therefrom', a bearingmember carried on saidv structure and oscillating therewith, a

conduit extending to and along said pivoting support to said oscillatingbearing, a

Alubricant inlet at said fixed structureleading to said conduit, thelower bearingpart of said struct-ure affording free transverse passageto the oscillating structure and imposing high resist-ance to leaktherefrom.

33. In apparatus 'of the character described, a,lower.bearing having afixed ele ment, an oscillating structure including Va bearing memberrockin on saidlfixed'element, a'bearing at hig er level* oscillatingwith said structure, an inlet in the fixed bearing element feedingacross the bearing surface thereof int-o a duct rigid with saidoscillating structure said duct in turn delivering to the higherbearing, said duct affording a relatively fre'e passageway from saidinlet, said lower bearing imposing high resistance to leak therefrom,whereby after pressure application has ceased, some of the lubricantinthe-duct will return by gravity How to'oil' the lower bearing.

34. In avx'notorl vehicle a supporting bear ing member rigid with thevehicle structure,

leak through the en link having- .a borev conveying the lu ricantv Yorkand State of New York t a complementary bearing member vhaving' arocking "movement thereon, a link rigid with rocklng bearing element,said vpassageway l affording a relatively open vcourse forlubricant-flow and of resistance less than that encountered in the s ofthe bearin said from said rocking bearing 'to said oscillating passageoflubricant by Ibearing, said bore having a lubricant-tight relationwith respect-t0 the bearing members at the opposite ends thereof.

Signed at New Yorkvinthe coun of New is 22nd day of March, A. D. 1926.JOSEPH BIJUR.

